We evaluate the efficiency of basic and secondary education in 24 governorates of Tunisia during the period 1999-2008 using a non-parametric approach, DEA (Data envelopment Analysis). We use four inputs: number of teacher per 100 students, number of classes per 100 students, number of schools per million inhabitants and education spending per student, while
the output measures include the success rate of baccalaureate exam and the rate of nondoubling in the 9th year. Our results show that there is a positive relationship between school resources and student achievement and performance. Moreover, there was an increase in output efficiency scores in most governorates through the period from 1999 to 2008.